-Capacity: 1600.00 Cubic inch -Dimensions: 14" W x 13" D x 18.5" T -Ballistic nylon -Heavy-duty hook-and-loop flaps -Multiple storage spaces with glove-friendly, ergonomically contoured zipper pulls (2 zippered exterior pockets, 2 exterior mesh water bottle pockets, personal music device pocket with headphone port, a padded laptop compartment and a large interior space) -Bag and rain cover (included) feature 3M™ Scotchlite™ reflective piping and graphics for added visibility -For attaching to a motorcycle, requires sissy bar upright, backrest pad, and luggage rack -Also can be carried as a regular backpack